Chemistry, asked by ajinkyalondhe3758, 1 year ago

five elements A B C D E have atomic no 2,9,11,12,20,which pair of element belong to same group

Answers

Answered by shikhargupta2015

3

D and E because number of valence electrons in the outermost cell of elements D and E are same

Answered by dhruvsh

2

D & E(12 & 20) belong to the same group as the number of valence electrons in the atoms of both of these are equal that is 2

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